Rontgenpraxis; Zeitschrift fur radiologische Technik最新文献

{"title":"EDB+Impressum","authors":"","doi":"10.1016/S0035-7820(07)00007-9","DOIUrl":"https://doi.org/10.1016/S0035-7820(07)00007-9","url":null,"abstract":"","PeriodicalId":76505,"journal":{"name":"Rontgenpraxis; Zeitschrift fur radiologische Technik","volume":"56 4","pages":"Page iv"},"PeriodicalIF":0.0,"publicationDate":"2007-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0035-7820(07)00007-9","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"92130909","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Endovaskuläre Behandlung arteriosklerotisch bedingter arterieller Stenosen und Okklusionen der Aortenbogengefäße: Mittelfristige Ergebnisse einer Ein-Center-Analyse","authors":"Stefan Müller-Hülsbeck,&nbsp;Marcus Both,&nbsp;Nikolas Charalambous,&nbsp;Philipp J. Schäfer,&nbsp;Martin Heller,&nbsp;Thomas Jahnke","doi":"10.1016/j.rontge.2006.05.004","DOIUrl":"https://doi.org/10.1016/j.rontge.2006.05.004","url":null,"abstract":"<div><h3>Objective</h3><p>To determine mid-term patency rates after endovascular treatment of supraaortic atherosclerotic arterial stenoses and occlusions using percutaneous transluminal angioplasty (PTA) and stent placement.</p></div><div><h3>Patients and Methods</h3><p>During a period of 83 months, 48 patients (18 female, 30 male; mean age 61 years, range 31–82 years) were included into this prospective single-center study. Fifty-five lesions of the brachial and cephalic arteries (subclavian/axillary artery <em>n</em>=42, innominate artery <em>n</em>=7, origin common carotid artery <em>n</em>=6) were treated using PTA (<em>n</em>=38), PTA plus stent (<em>n</em>=11) or primary stent placement (<em>n</em>=6). For anticoagulation, patients received a bolus of heparin (5000<!--> <!-->IU) intraarterially during the intervention followed by intravenous application for 24<!--> <!-->h. At discharge, life-time application of ASA (100<!--> <!-->mg/day) was initiated. Follow-up protocol included clinical examination, colour-coded duplex ultrasound and intraarterial angiography in case of re-stenosis.</p></div><div><h3>Results</h3><p>PTA and stent placement were technically successful in all patients (100%). No major complications occurred. Of seven patients presenting with total occlusions, six were treated with stent placement. Stent implantation was also performed in all lesions located at the origin of the supraaortic arteries (<em>n</em>=6). In 38 lesions, the result of PTA was satisfactory. Mean follow-up time is 22 months (range 1–83 months). During follow-up examinations, re-stenoses occurred in 10 cases (at 1 month <em>n</em>=2, at 6 months <em>n</em>=2, at 12 months <em>n</em>=3, at 24 months <em>n</em>=3). In 9 lesions, re-interventions were performed (PTA <em>n</em>=7; PTA plus stent <em>n</em>=2). According to Kaplan–Meier life-table analysis, cumulative primary and primary assisted patency rates are 69.5% (patients at risk <em>n</em>=15; standard error 9%) and 90.6% (patients at risk <em>n</em>=16; standard error 6.3%) at 20 months, respectively.</p></div><div><h3>Conclusions</h3><p>Endovascular treatment of atherosclerotic obstructive disease in brachial and cephalic arteries is a safe procedure showing promising mid-term patency rates.</p></div>","PeriodicalId":76505,"journal":{"name":"Rontgenpraxis; Zeitschrift fur radiologische Technik","volume":"56 4","pages":"Pages 119-128"},"PeriodicalIF":0.0,"publicationDate":"2007-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.rontge.2006.05.004","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"92012605","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effiziente Diagnostik pathologischer Frakturen","authors":"Thomas Schulz ,&nbsp;Torsten Prietzel ,&nbsp;Regine Kluge ,&nbsp;Jens Peter Schneider ,&nbsp;Andrea Tannapfel ,&nbsp;Thomas Kahn","doi":"10.1016/j.rontge.2006.01.001","DOIUrl":"10.1016/j.rontge.2006.01.001","url":null,"abstract":"<div><p>Pathological fractures are defined as fractures, which appear at diseased and mechanically weakened bones due to systemic or local processes. Their frequency is below 5%. This study demonstrates typical results and diagnostic criteria of pathological fractures. It will be shown, how diagnostic analysis is supposed to be performed to recognize pathological fractures. Based just on the X-ray image, diagnostic algorithms should provide all tools required for the radiologist to create a final diagnosis or to refer to other appropriate imaging modalities followed by a correct diagnosis and, if necessary, to allow interdisciplinary causal therapies.</p></div>","PeriodicalId":76505,"journal":{"name":"Rontgenpraxis; Zeitschrift fur radiologische Technik","volume":"56 3","pages":"Pages 75-92"},"PeriodicalIF":0.0,"publicationDate":"2006-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.rontge.2006.01.001","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"26318473","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Dünndarmobstruktion durch Retention einer Videoendoskopie-Kapsel bei einem Patienten mit Rektumkarzinomrezidiv","authors":"Marc Heinrich ,&nbsp;Aleksandar Grgic ,&nbsp;Martina Heckmann ,&nbsp;Michael Uder","doi":"10.1016/j.rontge.2006.05.002","DOIUrl":"10.1016/j.rontge.2006.05.002","url":null,"abstract":"<div><p>Wireless capsule endoscopy has become the most sensitive and most specific diagnostic modality for evaluation of the mucosa of the small bowel and is increasingly used by gastroenterologists. The most important complication is retention of the video capsule in patients with pre-existing strictures of the small bowel. We report on a case of a 73-year-old man who underwent capsule endoscopy because of obscure gastrointestinal bleeding. The capsule was retained in the ileum leading to small bowel obstruction during the following days. Surgery demonstrated that the capsule had been retained in a segment of the ileum which was infiltrated by a recurrence of rectum carcinoma. Radiologists should know this complication of capsule endoscopy as well as the relative importance of the radiographic techniques for evaluating the small bowel, which possibly could predict a free passage of the video capsule.</p></div>","PeriodicalId":76505,"journal":{"name":"Rontgenpraxis; Zeitschrift fur radiologische Technik","volume":"56 3","pages":"Pages 113-117"},"PeriodicalIF":0.0,"publicationDate":"2006-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.rontge.2006.05.002","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"26318477","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"EDB+Impressum","authors":"","doi":"10.1016/S0035-7820(06)00024-3","DOIUrl":"https://doi.org/10.1016/S0035-7820(06)00024-3","url":null,"abstract":"","PeriodicalId":76505,"journal":{"name":"Rontgenpraxis; Zeitschrift fur radiologische Technik","volume":"56 3","pages":"Page iv"},"PeriodicalIF":0.0,"publicationDate":"2006-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0035-7820(06)00024-3","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"92031250","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Späte Fernmetastasierung eines intrakraniellen Hämangioperizytoms","authors":"Ulf Lützen ,&nbsp;Kay Engellandt","doi":"10.1016/j.rontge.2006.02.001","DOIUrl":"https://doi.org/10.1016/j.rontge.2006.02.001","url":null,"abstract":"<div><p>Hemangiopericytomas are rare tumors which arise from the pericytes of Zimmermann. They can occur anywhere, where capillaries can be found. Seldomly this primitive mensenchymal tumors are found intracranially. The current classification of the World Health Organization (WHO) lists the Hemangiopericytomas as entity of its own and they belong to the mesenchymal non-meningoendothelial tumors. These tumors are very aggressive. They have a high rate of local recurrence and also a high propensity for late distant metastases. The case presented, is an example for these special characteristics with late development of distant metastases in spite of no local recurrence. The treatment of both, the primary tumor as well as the recurrence and the distant metastases is radical surgery. The post-operative radiation therapy improves the local control of the tumor. Within the frame of the oncological follow-up the diagnostic imaging procedures play the most important role.</p></div>","PeriodicalId":76505,"journal":{"name":"Rontgenpraxis; Zeitschrift fur radiologische Technik","volume":"56 3","pages":"Pages 93-97"},"PeriodicalIF":0.0,"publicationDate":"2006-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.rontge.2006.02.001","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"92141198","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Usefulness of 1H-MRS in the diagnosis of contrast enhancing cystic lesions: A case report","authors":"Janine Rennert ,&nbsp;Andreas Stadlbauer ,&nbsp;Christopher Nimsky ,&nbsp;Arnd Doerfler ,&nbsp;Oliver Ganslandt","doi":"10.1016/j.rontge.2006.05.001","DOIUrl":"10.1016/j.rontge.2006.05.001","url":null,"abstract":"<div><p>The clinical and radiological features of brain abscesses<span> can sometimes imitate those of necrotic tumors or metastasis. Whereas the approach and urgency of surgical intervention differs enormously, further diagnostic features are necessary in order to establish the correct preoperative diagnosis.</span></p><p>We report on two patients who presented with septated ring-enhancing lesions in the right parieto-temporal hemisphere with perifocal edema and discuss the role of 1H-magnetic resonance spectroscopy (MRS) in the diagnosis of contrast enhancing cystic lesions.</p></div>","PeriodicalId":76505,"journal":{"name":"Rontgenpraxis; Zeitschrift fur radiologische Technik","volume":"56 3","pages":"Pages 99-104"},"PeriodicalIF":0.0,"publicationDate":"2006-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.rontge.2006.05.001","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"26318475","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Analyse der Bildqualität einer diffusionsgewichteten (EPI DWI) Sequenz: Untersuchungen an einem 1,5 T MRT mit höherer Gradientenfeldstärke","authors":"Ulrich Dorenbeck ,&nbsp;Nils Zorger ,&nbsp;Stefan Feuerbach","doi":"10.1016/j.rontge.2006.05.003","DOIUrl":"https://doi.org/10.1016/j.rontge.2006.05.003","url":null,"abstract":"<div><p><em>Purpose</em>: Single – shot echo planar Diffusion – weighted – Imaging (EPI DWI) requires extended gradient facilities with strong, fast switching gradients. Up to now the image quality of EPI DWI is enormously influenced by some kinds of artifacts. Therefore we evaluated the image quality of EPI DWI in demonstrating anatomical structures using a 1.5<!--> <!-->T MR scanner with a higher gradient field strength of 40<!--> <!-->mt/m, a risetime of 200<!--> <!-->μs and a slewrate of 200<!--> <!-->T/m/s.</p><p><em>Materials and methods</em>: Using an evaluation scale with four categories two independent readers evaluated 12 different infra – and supratentorial anatomic regions of the brain on 50 DWI images and compared them with the corresponding T2 turbospin echo image.</p><p><em>Results</em>: No region was judged to be undistinguishable. On axial DWI images the assessment of the brain stem was poor. In the level of the putamen and thalamus the image quality of DWI was judged to be from adequate to excellent. The central sulcus and the boundary of the white and grey matter was assessed to be adequately visible. The interobserver variability showed a good agreement between the two readers.</p><p><em>Conclusion</em>: The image quality of EPI DWI improves from a higher gradient field strength. The shortening rise time of 200<!--> <!-->μs and the slewrate of 200<!--> <!-->T/m/s will lead to a faster gradient switching. Single shot EPI DWI is less influenced by image artefacts and the presentation of different anatomical structures profits when a MR scanner with higher gradient field strength is used.</p></div>","PeriodicalId":76505,"journal":{"name":"Rontgenpraxis; Zeitschrift fur radiologische Technik","volume":"56 3","pages":"Pages 105-112"},"PeriodicalIF":0.0,"publicationDate":"2006-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.rontge.2006.05.003","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91993439","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Primär intestinale Lymphome — Diagnosestellung mittels CT und Therapie","authors":"Holger Gößmann ,&nbsp;Thomas Görlitz ,&nbsp;Andreas Beck ,&nbsp;Hans-Bernd Reith","doi":"10.1016/j.rontge.2005.12.002","DOIUrl":"10.1016/j.rontge.2005.12.002","url":null,"abstract":"<div><p>Primary intestinal lymphomas are most common in the stomach. The mucosa associated lymphatic tissue (MALT)-lymphoma which is closely associated with helicobacter pylori is very well known. In most cases, these malignancies are from B-Cells origin. Another possible point of manifestation, although not well known, is the small bowel. Both tumors have enormous capabilities to enlarge in the abdominal cave. This is responding to their often asymptomatic manifestation. The symptoms, if they occur, are widespread and unspecific. Ileus, diarrhae, abdominal pain or bleeding will be observed, in rare cases also perforation or gastrointestinal or cutaneous fistulas. Diagnostic imaging often demonstrates a tumour of massive size by then, which is echopoor in the abdominal ultrasound.</p><p>Our report concerns two cases of small intestine lymphomas, which were diagnosed by CT-scanning and treated in our clinic in only a short period of time. The first case was a low malignant jejunal lymphoma which was almost asymptomatic, whereas the second case had an ileus, due to compression of the intestine because of a high malignant lymphoma of the ileocecal region.</p></div>","PeriodicalId":76505,"journal":{"name":"Rontgenpraxis; Zeitschrift fur radiologische Technik","volume":"56 2","pages":"Pages 67-72"},"PeriodicalIF":0.0,"publicationDate":"2006-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.rontge.2005.12.002","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"26054136","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Differenzialdiagnose der Bronchiektasen: High-resolution CT als wertvolle Hilfe","authors":"Martina Heckmann ,&nbsp;Michael Uder ,&nbsp;Bernhard Kramann ,&nbsp;Marc Heinrich","doi":"10.1016/j.rontge.2005.12.001","DOIUrl":"10.1016/j.rontge.2005.12.001","url":null,"abstract":"<div><p>Bronchiectasis is defined as localized irreversible dilatation of the bronchial tree. Brochiectasis has been associated with a wide variety of causes, but it is mostly caused by acute, chronic or recurrent infections. This paper should give a review about the manifestation of bronchiectasis and bronchioloectasis in HR-CT and discuss the causing entities. However, integration of bronchiectasis and other HR-CT findings may enable a narrower differential diagnosis, in some cases it is possible to give the correct diagnose directly.</p></div>","PeriodicalId":76505,"journal":{"name":"Rontgenpraxis; Zeitschrift fur radiologische Technik","volume":"56 2","pages":"Pages 39-46"},"PeriodicalIF":0.0,"publicationDate":"2006-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.rontge.2005.12.001","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"26051977","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}